Riffle.



` J. B. SLOANE.

` RIPFLE.

APPLICATION FILED DEO.17, 1904.

@SHEETS-SHEET 2.

W/T/VESSES:

'if QL M ATTORNEY PATBNTED MAR. 19, 1907.

'drawings and to t to ado ted in practice;

' UNrrED s'rAirEs PATENT OFFICE.-

JOHN IBYRON sLoAN'E, lor 'Los' ANGELES, CALIFORNIA.

' BIFFLE.:

speiaeation of nemers Patent. rammed iuarcn 19, 1907.-

Appuaaoanednagmter17,1904. seraiiraasfnzooia To a'yftom it' may concern:

vBe it known that I, JOHN BYRON SLoAN-ia,

of the, city of Los Angeles, inthe county. of-

Los Angeles, in the State of California, have l-invented certain new anduseful Improvements inv Riflles, of which thefollowing is a full, clear,and exact description or specification, reference beingl e letters andigures marked thereon.

My said'invention, which relates 'to' cer tain., newand usefulimprovements in and connected'withriies--such as are used inlsluic'e-boxes, troughs, or other'devices. or ap,

paratus employed in separating old or-other precious p metalrom`pulverize ore, sand,v

tailings, 'or' dirt-has for its objecttoinsure that the pulverized ore,-sand, tailings, or dirt shall not bank up before the riflies, las is thecase when using riflies of the kind hither'- 'fU er my present theirheight have the iront u` per thereof curved forward. At a s ort istancein iront of and at a shortv distance above the bottom of the sluice,trough, orother appaf lratusin which my im roved riiilesare used thereis arranged para lel therewith a watercarrying pipe t which 'watergissupplied from any conveiiient head or source.` This pipe is perforatedand when in operation for the purpose of separating the goldor otherpreclo'us metal water issues from the perfo` rations and rev, ents thepulverized ore, sand, tailin s, or irt containing the precious metalfrom anking up in front of the riiles. This agitating effect of theWater issuing'irom'the perforated pipes not only 'prevents the bankvmgof the. material passing "through the other apparatus and thence fromrle to'`v riflie throughout, the. length of the sluice-box, trough, orother apparatus. -By preventing y the banking of the pulverizedore,sand, tailings, or dirt in iront of the riif'es-b'y the action of waterissuing through the fperforations of the water-pipe in front ofeachriiie'the fresh pulverized ore, sand, tailings or dirt into thesluic'eebog-Ltrough, or its had to the annexed mventionfthe riies inplace of beingV vertical or straight throughout ortion equivalent isoiperated upon at once bythe water issuing large extent carried `over 1uonthe' bank of- 'inaterial in front of each mille of, -the kind:

.hitherto used Ithe pulveriz'ed ore, sand, tail-4 omlthefperforated'pipe before ea'ch ril'e, sothatinlplace of being toa ings, ordirt'arecompletely separated from:

the precious metal contained in them at each rife, vso that ,the gold orother preciousgmetal -is collected at the front of the bottom ofV each.

rifile, while the pulverized ore', sand, tailings;v

andv earthy matter is carriedoverthetop' of y the riiiiey andwithoutthe. formation of any banking of the material, ashashitherto-been the case. I The result of operating myinew or"- improvedrifileand erforated water-v lpejis I that the gold 'or vot Aerprecious-meta `1s 4at from `being carried -in any considerable quan'tity `ovei` `the 'top of vthe; rilii'e, p so" that the time `occupiedlinseparating. fthe.l metal is thereby censiderablyreduce l, Upon theannexedsheet of drawings, Figure 1 is a longitudinal section, on asmal-lscale, of a a dtheir effect in causin the banking' "u -of tltile'pulve'rized rock, sangd, ltailin s, yorf-'Idirt' in t e spacesbetweenthe rii'lies, it: 'eing here .expl edv that the object of "showin thisgvfigure of, drawing is A-to illustrate the" "anking A of lthe" precious'-metal-bearing 'material,";

8o portion ofa sluice-"ioox"as-atl present confp structed, showing theupright riffles' therein l which banking it is the .object of my present9 gitudinalsection, upon- 'a small. scale, of" asluice-hox,Ishojvfv'mg'my- 1mproved--- ril'es and invention to prevent; `-'F1g.`2 isanothenlon'f .the water-pipefusedinfront -ofy'each said.

transverse section-` y(iiills izjelfoffa, small riflleand theerflo'rated waterepipe on anienlar ed scale. ig. Llisfa yertical sectionof ariiie;

as commonly] employed in sluice-boxes and other devicesherein shownforthe purpose of betterillustrating thatwhlch constitutes my resentinvention. Fig. 5 .is a transverse; y section (fullsize) of a higherrlflie" and larger water-pipe than that shown'at'FigA. Fig. 6

is a section of part of oneside and lart of the bottom of a sluice-box,(full s ize,) s owing the rifile illustrated at Fig.` 5 applied therein,

also showing the perforated water- 'ipe in front of said riflie. In thebottompof t e rifile .shown at Figofthe drawings, perforations areAshown in'solid lines, whlch allow of the passage of any coarse portionsof matter.

Fig. 7 is a plan (full size) 'of a portion of a .,sFhowni'at Fig.- :1and also shawn (fullsize) at ugffia.. v r ySaltvecl'ethat'above--thatis-to say, infront of-' I and that athese .banksE E extend rearward--trom:,tbelfron't of .any

. troughA,;and `when formed constitute ase- 1n :the direction of fthearrow iX skims over v precious metal `being. separate se 1 v(ihovvninthe sluice-fbox at Figs-.Zand Siand in thefeniarged yFigs. 4,5, @fand 7jcentrailmember Aupri 351 i l v y l rearward atthe .upper partthereof, asshown sluice-box and of my new or improved yrifiie l and perforated pipe.shown .thereinl With reference to Fig. 1, 'the-bottom of the sluice-boxis marked A and the sides B. The rifiies C therein each have aiange-bottom D, as shownl v(full size) at Fig. 4a. By nails, screws, orequivalent fastenings ypas'sin through holes in the bottom =D the severarifiies C are fastened to the bottom and sides 0f the sluice-boX.A. Theupwardly-projectmg member y ofveachlrifiie @C is vertical, as

:Qn referring-to Fig. .l itwill'fbe obeach upright .'riile-.Oabank ofthepulverized ore, sand, tailings, .or dirt collects one .riiie Cftoward the rifie "C 4 preceding fit. These banks of pulverized matterlremain unmoved, because of .the 4Support .which the vertical rifiles Cprovide 'forfonthe bottom of the slice-box or I 'leSfOffbI'idgingsurfaces across the' sluice-box ortroughA, upon which the other materialsubsequently passing through the sluice-boxwithoutmorethan.aelittleofthe old orother This defect i overcomebylmyimproved-riffles .My improved .riiie `instead .ot having lits ht,as showmat Figs. i and-@andate dotted mes at Fig. 5, is-curved againstthe riiie in the manner shown 'at E ,I

Eig. Bjr-the aotio'no the water issuing creased in .ya sluice-.box orequivalent apparatus provided with the new or 'improved riiiieconstituting my :present :invention- Although I have hereinbeforedescribed and on the .annexed -drawings have shown the-rifle ashavingacurvedupper portion,.it is yto be understood that my .invention.includes the combination of the perforated vwater-pipe with a riliewhich is .Without the curved portion of the upwardly-projecting memberthereof.

- Having :now described the nature of my saidinviention and thebestsystem, mode, or mannenwithl which l-am at present acquainted -forcarrying-the same into practical effect, desire-.toobserve,inconclusion,'thatwhat i consider to be `novei'and original, andtherefore claim as the :invention toibefsecured .to me by 'Letters'Patent is as follows:

The combination of the sluice, rifflestherein having vertical members,iatebottomed members, 'curved 'top members, -said riies being providedwith :perforations near.-the junction of the lvertical and. bottomAmembersfalsofpipes in said sluice below the plane of the topo'f saidriiies, said pipes having-a series of periorationscircumerentiallyspaced-to projectjets owaterin-opposite, thatiis to say, 'substantiallyvertical and horizontal directions.

in testimonliT whereof i, the said J oH-N BY- RONSLOANE, .have hereuntoset my hand and 'seal in athe :presence of two subscribing witnesses.-

JUHN yBYRON lSiu(Nihii. Witnesses:

Sr.. JOHN .DAY-

HADA'ssAn 'Der'.

